Two months later, a giant with a length of more than 80 meters, a wingspan of less than 60 meters and a height of fifteen meters was quietly parked at the starting point of the runway of the Great Desert Space Center. At the same time, an expert and technical team of nearly 100 people were inspecting the aerospace plane in all aspects to ensure the condition of the plane.

That's right, this behemoth is the product of their Tiangong Technology's in-depth transformation of the Phoenix-2 aircraft in the past two months, the Phoenix-kt2 medium-sized aerospace plane.

Like the previous Phoenix-KT1, this aerospace plane can take off and land from the ground like a normal plane and fly like a normal plane in the atmosphere. At the same time, it can also break through the atmosphere and enter space.

Moreover, due to Tiangong Technology's technological progress in pulse-detonation rocket engines and plasma and isotope engines, the design data of this aircraft is already higher than the data previously scheduled by Tiangong Technology.

Take the highest orbit that this space plane can reach for example. With full fuel and full power, it can reach the height of the Earth's prohibited orbit, that is, the height of 36,000 kilometers. If more batteries are installed so that it can carry more electricity, its flight altitude will be higher. Even if it directly reaches the lunar orbit, it is not difficult.

In addition, the carrying capacity of this aerospace plane is also very powerful. It can transport up to about 120 tons of cargo to the low orbit of the earth. The carrying capacity of the medium orbit, that is, the orbital aircraft where Tiangong Technology's Ziwei Space Station is located, can transport up to about 70 tons of materials. As for the high orbit, that is, the geosynchronous orbit, it can transport up to about 40 tons of cargo at one time.

In addition to this, in addition to the cargo warehouse, this aerospace plane also has a huge cabin, right behind the cockpit, with ten seats, that is, in addition to carrying cargo, plus three astronauts in the cockpit, this aerospace plane can carry thirteen astronauts to the sky at one time.

At this time, Zhao Feng, wearing an exoskeleton space suit, and two other astronauts were confidently moving towards the Phoenix-KT2 medium-sized aerospace plane developed by their Tiangong Technology Institute. The first test flight of this aerospace plane will be completed by them.

Of course, just like the test flights of the airplane before, this Phoenix-kt2 airplane will not directly fly for the airplane for the first time. Like other aircraft, the first test flight will only test the normal take-off and landing capabilities of this aircraft.

Only after determining the take-off and landing capabilities of this aircraft will it be conducted with more difficult test flights, such as various actions when flying in the atmosphere, followed by supersonic and supersonic flights, extreme speed flights in the atmosphere, etc.

Only when all these subjects are completed can more difficult aerospace flights be carried out.

However, even if all the test flight subjects in the atmosphere are completed, the aircraft will not conduct test flights directly for medium and high orbits. Instead, it will conduct test flights for low orbits first, and then for medium or high orbits.

In short, like the previous test flights, this aerospace plane's test flight is also progressive.

As the best astronaut and the best test pilot in Tiangong Technology, Zhao Feng is of course the only way to take such test flight work.

Soon, the inspection of the plane was completed, so at the command of the tower, he directly drove the pulse engine to the maximum power, and the aerospace plane immediately began to glide. At the same time, two attached engines that ejected flames downward, or vertical take-off and landing engines, also began to work under the aerospace plane.

Although this aerospace plane has two vertical take-off and landing engines with the efforts of Tiangong Technology researchers, the weight of this aerospace plane is too large, so it is impossible to take-off and land on the earth. However, when the aircraft takes-off, especially when it takes off, these two vertical take-off and landing engines can greatly shorten the plane's skiing distance.

According to the calculations of Tiangong Technology R&D personnel, if these two vertical take-off and landing engines are not turned on, the skiing distance of this aircraft must reach at least six or seven kilometers, but with these two engines, the skiing distance during take-off can be shortened by at least half.

In other words, with two engines, this aerospace plane can take off as long as it takes about three kilometers.

However, after the plane took off, the speed of the plane reached the subsonic level in just one or two minutes. However, since there were no supersonic test subjects in the test flight subjects, Zhao Feng had to keep the plane at this speed after reaching the subsonic speed, and then according to the test flight subject, he began to hover over the East China Sea. After a few minutes, he became a phoenix.

Of course, when landing, due to the existence of a vertical take-off and landing engine, Zhao Feng clearly felt that the aircraft's landing became more stable and easier to control.

The most important thing is that the sliding distance after landing is shorter, which gives him more trust in Tiangong Technology's technology.

After the first test flight, Wang Bin and his team immediately conducted a series of inspections on the plane. In just one night, they completed the inspection of the plane. After the inspection was no problem, the next day, a new test flight subject was arranged. Like the previous first test flight, this test flight was carried out by Zhao Feng and his crew.

In the following days, Zhao Feng would conduct test flights almost every day, while Wang Bin and others would inspect the plane every night. In less than two weeks, Wang Bin and others completed all subjects of test flights in the atmosphere.

The completion of the test flight subject in the atmosphere means that the test flight subject for aerospace flight will be launched.

Wang Bin and the others were very cautious in this regard. After all the test flights in the atmosphere were completed, Wang Bin and the others immediately conducted a comprehensive inspection of the aircraft, including a series of large and small parts such as the engine body, and even a small screw would not be spared.

For this reason, Wang Bin and the others spent three days directly. It should be noted that they only took two weeks to test flights in the atmosphere before. It can be imagined how careful Wang Bin and the others were in the inspection of the plane this time.

After confirming that there was no problem, the test flight subject that broke through the atmosphere finally began. After taking off, Zhao Feng directly shut down the aircraft's vertical take-off engine, closed the engine compartment door of the vertical take-off engine, and then pushed the power of the main engine to the maximum.

The speed of the aircraft suddenly rose rapidly under the push of the engine and soon reached the maximum speed of the Phoenix-kt1 aircraft in the atmosphere, and the aircraft was still speeding up. Zhao Feng did not feel any surprise in this.
Chapter completed!